Zeitschriftenartikel: „Field-of-view extension“

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Zlotnik, Alex, Yuval Kapellner, Zvika Afik, Itshak Layani und Zeev Zalevsky. „Geometric superresolution and field-of-view extension achieved using digital mirror devices“. Journal of Micro/Nanolithography, MEMS, and MOEMS 12, Nr. 3 (08.07.2013): 033001. http://dx.doi.org/10.1117/1.jmm.12.3.033001.

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Zamyatin, Alexander A., und Satoru Nakanishi. „Extension of the reconstruction field of view and truncation correction using sinogram decomposition“. Medical Physics 34, Nr. 5 (18.04.2007): 1593–604. http://dx.doi.org/10.1118/1.2721656.

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3

Jones, J. Adam, David M. Krum und Mark T. Bolas. „Vertical Field-of-View Extension and Walking Characteristics in Head-Worn Virtual Environments“. ACM Transactions on Applied Perception 14, Nr. 2 (20.02.2017): 1–17. http://dx.doi.org/10.1145/2983631.

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4

Blumhagen, Jan O., Ralf Ladebeck, Matthias Fenchel und Klaus Scheffler. „MR-based field-of-view extension in MR/PET:B0homogenization using gradient enhancement (HUGE)“. Magnetic Resonance in Medicine 70, Nr. 4 (30.11.2012): 1047–57. http://dx.doi.org/10.1002/mrm.24555.

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5

Takeuchi, Mayumi, Kenji Matsuzaki, Yoshimi Bando und Masafumi Harada. „Reduced field-of-view diffusion-weighted MR imaging for assessing the local extent of uterine cervical cancer“. Acta Radiologica 61, Nr. 2 (01.06.2019): 267–75. http://dx.doi.org/10.1177/0284185119852733.

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Background Recently, the evaluation of the tumor size and local extension of early-stage uterine cervical cancer on magnetic resonance imaging is important for the accurate clinical staging and to determine the indication of less extensive surgery such as fertility sparing radical trachelectomy. Purpose To compare the diagnostic ability of reduced field-of-view diffusion-weighted imaging with those of three-dimensional (3D) contrast-enhanced T1-weighted imaging and T2-weighted imaging for assessing the tumor margin delineation and local extent of uterine cervical cancer. Material and Methods 3T magnetic resonance images, including T2-weighted imaging, reduced field-of-view diffusion-weighted imaging, and 3D contrast-enhanced T1-weighted imaging, in 27 women with surgically proven cervical cancer (19 FIGO stage IB1, 3 IB2, and 5 IIA1) were retrospectively evaluated. Tumor margins and local tumor extent, including the presence of invasion to parametrium and vagina were evaluated on both sagittal and oblique axial (short axis) images; the results were compared with histologically confirmed tumor extension. Results Reduced field-of-view diffusion-weighted imaging diagnosed the tumor margins, which was more accurate than T2-weighted imaging ( P<0.001) and slightly better than 3D contrast-enhanced T1-weighted imaging. Reduced field-of-view diffusion-weighted imaging could define the tumor margins well even in small lesions (≤ 20 mm). Histological examination revealed parametrial invasion in two cases (clinically under-staged) and vaginal invasion in four cases. Reduced field-of-view diffusion-weighted imaging could demonstrate local extension of all lesions, which was more accurate than clinical examination and T2-weighted imaging. Conclusion Addition of reduced field-of-view diffusion-weighted imaging may improve the staging accuracy of magnetic resonance imaging for cervical cancer in assessing the local tumor extent.

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Miura, Kei. „Field theory for function fields of singular plane quartic curves“. Bulletin of the Australian Mathematical Society 62, Nr. 2 (Oktober 2000): 193–204. http://dx.doi.org/10.1017/s0004972700018669.

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We study the structure of function fields of plane quartic curves by using projections. Taking a point P ∈ ℙ2, we define the projection from a curve C to a line l with the centre P. This projection induces and extension field k (C)/k (ℙ1). By using this fact, we study the field extension k (C)/k (ℙ1) from a geometrical point of view. In this note, we take up quartic curves with singular points.

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Wang, Zihan, Jie Cao, Qun Hao, Fanghua Zhang, Yang Cheng und Xianyue Kong. „Super-resolution imaging and field of view extension using a single camera with Risley prisms“. Review of Scientific Instruments 90, Nr. 3 (März 2019): 033701. http://dx.doi.org/10.1063/1.5050833.

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Wang, Yang, Jun Li, Xuben Wang und Xingxiang Jian. „Inversion Technique of Physical Parameters Based on Regularization Extension Depth Constraint“. Earth Sciences Research Journal 23, Nr. 4 (01.10.2019): 331–38. http://dx.doi.org/10.15446/esrj.v23n4.84340.

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Through the regularization downward continuation of gravity and magnetic anomalies, the depth of the field source can be solved. However, due to the Gibbs effect, the horizontal resolving power of the field source is poor. In view of this, based on the depth of field source established by regularization downward continuation, this paper proposes a physical property parameter inversion method based on iterative continuation and anomaly separation, which can effectively improve the inversion accuracy of superimposed anomaly physical parameters, and provide a new idea for solving the physical parameters of superposition gravity and magnetic anomalies.

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& Naji, Hussain. „EVALUATIONG THE PERFORMANCE OF SENIOR MANAGEMENT FOR THE EXTENSION ORGANIZATION IN LIGHT OF THE TOTAL QUALITY STANDARDS FROM THE STANDPOINT OF AGRICULTURAL EXTENSION WORKERS IN GOVERNORATES OF BAGHDAD AND DIYALA FROM IRAQ“. IRAQI JOURNAL OF AGRICULTURAL SCIENCES 52, Nr. 4 (22.08.2021): 1008–18. http://dx.doi.org/10.36103/ijas.v52i4.1412.

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This was aimed to identify the performance of the senior management of the extension organization in light of the comprehensive quality standards from the point of view of agricultural extension workers in the governorates of Baghdad and Diyala in Iraq through the following:Identify the field of planning, identify the field of decision-making, identify the field of humam relations.Data from agricultural extension workers in the governorates of Baghdad and Diyala, which included a graded pentagonal scale consisting of degrees of approval with grades ranging between 5-1 To measure the degree of application of comprehensive quality standards for higher management in the fields from the viewpoint of the agricultural extension workers in the above-mentioned governorates.The governorates of Baghdad and Diyala were selected as an area for conducting the research, as the research community included 38 agricultural divisions, at a rate of20%and by8divisions,and a random sample of510 agricultural extension workers was withdrawn, amounting to20%and by102 agricultural guides.The results showed that the weighted mean for the field of planning from the viewpoint of agricultural extension agents was 3.189,which is close to a certain extent from the hypothetical mean of 3 and a percentage weight 63.78%.With regard to the field of human relations,it came with a weighted mean3.136.

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Tallon, M., und I. Tallon-Bosc. „Beam Combination for Wide Field Imaging“. Symposium - International Astronomical Union 158 (1994): 83–90. http://dx.doi.org/10.1017/s007418090010734x.

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Several limitations reduce the field of view in radio-interferometry. With an optical array, two of them can be overcome to some extent according to the beam combination method. A beam combination in the pupil plane can completely overcome one of them. In the image plane, a beam combination obeying the rules of geometrical optics can overcome both limitations in principle, but is difficult to achieve in practice. We discuss particularly the real case of a Michelson Stellar Interferometer where a periscope partially re-introduces these limitations, yielding a trade-off between the extension of the field of view and the use of the periscope.

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Galimzyanova, Reseda Y., Aisylu R. Garifullina, Radif R. Garipov, Maria S. Lisanevich und Ildar N. Musin. „Application of Adhesives in Cosmetology“. Key Engineering Materials 869 (Oktober 2020): 88–92. http://dx.doi.org/10.4028/www.scientific.net/kem.869.88.

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The current state of the cosmetology industry in the field of eyelash extension services is analyzed. It is concluded that the popularity of this type of service, despite the negative impact on eye health, will grow in the near future. The main symptoms that occur when using this procedure are analyzed. Among the most common symptoms should be noted a feeling of heaviness of the eyelids, burning, discomfort associated with a decrease in the field of view. It is noted that despite a number of works in this area to date, there is insufficient research, both from the point of view of the analysis of clinical cases, and from the point of view of developing safer adhesive compositions. An analysis is made of the characteristics of adhesives used in domestic cosmetology rooms. At the same time, attention was paid to the following: country of production, composition, texture and texture, setting speed, wearing time, shelf life, recommended temperature and humidity level. A typical composition of glue for eyelash extension contains the following components: cyanoacrylate and its derivatives (± 90 %); polymethylmethacrylate (PMMA) (± 6 %); black pigment - carbon black (± 4 %).

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Blumhagen, Jan O., Harald Braun, Ralf Ladebeck, Matthias Fenchel, David Faul, Klaus Scheffler und Harald H. Quick. „Field of view extension and truncation correction for MR-based human attenuation correction in simultaneous MR/PET imaging“. Medical Physics 41, Nr. 2 (15.01.2014): 022303. http://dx.doi.org/10.1118/1.4861097.

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Nishida, Yasushi, und Katsuhiro Honda. „Visualization of Potential Technical Solutions by SOM and Co-Clustering and its Extension to Multi-View Situation“. Journal of Advanced Computational Intelligence and Intelligent Informatics 24, Nr. 1 (20.01.2020): 65–72. http://dx.doi.org/10.20965/jaciii.2020.p0065.

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In order to support inspiration of potential technical solutions, this paper considers visualization of solving means varied in patent documents through SOM. Non-structured patent document data can be quantified through two different scheme: word level co-occurrence probability vectors and correlation coefficients of the generated co-occurrence probability vectors. Comparing the two SOMs derived with the above schemes is useful for supporting innovation acceleration through extraction of important pairs of related factors in new technology development. In this paper, co-cluster structures are utilized for emphasizing field-related solutions by constructing multiple SOMs after co-clustering. Document × keyword co-occurrence analysis achieves extraction of co-clusters consisting of mutually related pairs in particular fields. Additionally, this paper also considers an extension to a multi-view situation, where each patent is characterized by additional patent classification system of F-term by Japan Patent Office. Through multi-view co-clustering among documents × keywords × F-terms, theme field-related knowledge is demonstrated to be extracted.

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Herbst, Magdalena, Frank Schebesch, Martin Berger, Jang-Hwan Choi, Rebecca Fahrig, Joachim Hornegger und Andreas Maier. „Dynamic detector offsets for field of view extension in C-arm computed tomography with application to weight-bearing imaging“. Medical Physics 42, Nr. 5 (04.05.2015): 2718–29. http://dx.doi.org/10.1118/1.4915542.

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Mahmudul Haq, Abu Zafar. „Agricultural Extension Contact and Farmer’s Income in Bangladesh“. Turkish Journal of Agriculture - Food Science and Technology 4, Nr. 9 (15.09.2016): 787. http://dx.doi.org/10.24925/turjaf.v4i9.787-792.697.

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The impacts of extension contact on income of farmers have been examined with a view to evaluate the agricultural extension services in Bangladesh. The scope of the study was ten villages of Gazipur of Bangladesh. The objective of the study is to identify the effect of extension contact on crop income, livestock income, fisheries income, miscellaneous income, total agricultural income, nonagricultural income and total income of farmers. The sample of the study consists of 1000 farmers. Data came from field survey and multistage random sampling technique was used for the collection of data. The results indicated that the impacts of extension contact coefficients on crop income, nonagricultural income are positive and significant. However, the impacts of extension contact coefficients are not significant in the cases of livestock, fisheries, miscellaneous and agricultural incomes. But it does not mean that agricultural extension has no reward in Bangladesh. The sample data indicates that the impact of extension contact on total income of farmers is positive and significant. The study concludes that agricultural extension is necessary to raise the income of farmers.

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CAO, ZHEN. „THE ARGO-YBJ EXPERIMENT PROGRESSES AND FUTURE EXTENSION“. International Journal of Modern Physics D 20, Nr. 10 (September 2011): 1713–21. http://dx.doi.org/10.1142/s0218271811019797.

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Gamma ray source detection above 30 TeV is an encouraging approach for finding galactic cosmic ray origins. All sky survey for gamma ray sources using wide field of view detector is essential for population accumulation for various types of sources above 100 GeV. To target the goals, the ARGO-YBJ experiment has been established. Significant progresses have been made in the experiment. A large air shower detector array in an area of 1 km2 is proposed to boost the sensitivity. Hybrid detections with multi-techniques will allow a good discrimination between different types of primary particles, including photons and protons, thus enable an energy spectrum measurement for individual species. Fluorescence light detector array will extend the spectrum measurement to 100 PeV and higher where the second knee is located. An energy scale determined by balloon experiments at 10 TeV will be propagated to ultra high energy cosmic ray experiments.

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Vidales, Carlos. „Communication, Semiosis, and Living Systems“. Comunicación y Sociedad 2021 (21.07.2021): 1–29. http://dx.doi.org/10.32870/cys.v2021.7932.

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In this paper, I analyze the process of semiosis emergence from the semiotic point of view to clarify the implications it may have for the field of communication studies regarding the extension of its anthropocentric boundaries. The research is based on Peirce's semiotics and the theoretical framework of cybersemiotics, a transdisciplinary theory of communication, cognition, information, and signification.

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Ishii, Noburo. „Cusp forms of weight one, quartic reciprocity and elliptic curves“. Nagoya Mathematical Journal 98 (Juni 1985): 117–37. http://dx.doi.org/10.1017/s0027763000021413.

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Let m be a non-square positive integer. Let K be the Galois extension over the rational number field Q generated by and . Then its Galois group over Q is the dihedral group D4 of order 8 and has the unique two-dimensional irreducible complex representation ψ. In view of the theory of Hecke-Weil-Langlands, we know that ψ defines a cusp form of weight one (cf. Serre [6]).

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Haq, Abu Zafar Mahmudul. „The Impact Of Agricultural Extension Contact On Crop Income In Bangladesh“. Bangladesh Journal of Agricultural Research 38, Nr. 2 (28.07.2013): 321–34. http://dx.doi.org/10.3329/bjar.v38i2.15893.

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The impact of extension contact on crop income is examined with a view to evaluating the agricultural extension in Bangladesh. The scope of the study was ten villages of Gazipur district. The objectives of the study are to i) determine the factors influencing the benefit of extension services in terms of farm income, ii) determine the factors affecting the extension contact of farmers, and iii) suggest some policy guidelines to improve the extension services in Bangladesh. The sample of the study consists of 1000 farmers. Data came from field survey and multistage random sampling technique was used in order to collect data. The results indicated that the impact of extension contact coefficient on crop income is positive and significant. Evidence shows that the influence of extension contact coefficient is strongly positive and significant in the comparatively nearer villages to upazila headquarters, while this effect is weaker for those villages, which are comparatively away from upazila headquarters. It is found that many farmers did not receive extension contact and the effect of extension contact is weak on crop income compared to other factors such as irrigation and chemical fertilizer. It is assumed that there was enough scope to increase extension contact in the study areas. Some determinants of extension contact were also examined. The study concludes that agricultural extension is necessary to increase among the farmers. Bangladesh J. Agril. Res. 38(2): 321-334, June 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i2.15893

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Vatsya, S. R. „Mechanics of a particle in a gauge field“. Canadian Journal of Physics 73, Nr. 1-2 (01.01.1995): 85–95. http://dx.doi.org/10.1139/p95-013.

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Classical motion of a charged particle in an electromagnetic field is described by the Lorentz equation in terms of the field components. The field is defined by the infinitesimal gauge group elements associated with closed curves. The Lorentz equation may be derived from the action principle with an appropriate Lagrangian. The Lagrangian may also be used to associate group elements with curves in the space-time manifold. The action principle is shown here to be an equivalence relation between the infinitesimal elements so defined for a collection of closed curves and the identity element. This suggests a natural extension to require the equivalence of global elements with the identity and by considering all curves. The resulting equation, in addition to providing an extension of the Lorentz equation, also admits a straightforward generalization to non-Abelian gauge fields. The extended equation has an infinite number of trajectories as solutions. The properties of these paths are shown to impart wavelike properties to the particles in motion. In view of these results, the motion of a particle is formulated within the framework of the path integral formalism that yields a generalized Schrödinger type equation in a general gauge field. As a further implication of the properties of the trajectories assigned to a particle, this equation is shown to reduce to a set of equations, one of them being the Klein–Gordon equation.

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Galvin, Peter, John Rice und Tung-Shan Liao. „Can a Darwinian nomenclature help reconcile alternative perspectives of the dynamic capabilities view?“ Journal of Management & Organization 21, Nr. 5 (24.08.2015): 695–700. http://dx.doi.org/10.1017/jmo.2015.32.

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AbstractThe confusion concerning the theoretical roots of the dynamic capabilities view and the fact that it was often being positioned as an extension to the resource-based view in strategic management, prompted a paper by Galvin, Rice, and Liao (2014) that suggested that the dynamic capabilities view would benefit from adopting a more explicit Darwinian approach. In response to this paper, Arndt and Bach (2015) highlighted that the seminal papers in the field do indeed take an evolutionary perspective and that in operationalizing the variation–selection–retention cycle in an empirical setting it is necessary to move away from firm performance as a dependent variable and instead use survival, which more closely aligns with the concept of natural selection. In this paper, we respond to this recent critique to articulate the benefits of a Darwinian nomenclature and how this will assist in positioning the dynamic capabilities view as an independent, though complementary, theory to the resource-based view. However, we do clearly recognize that until the key terms of variation, selection and retention can be operationalized at the routine, firm and industry level, such an approach may not in itself bring the field towards a common understanding of how dynamic capabilities operate in different environments.

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Creamer, N. G., K. R. Baldwin und F. J. Louws. „A Training Series for Cooperative Extension Agents on Organic Farming Systems“. HortTechnology 10, Nr. 4 (Januar 2000): 675–81. http://dx.doi.org/10.21273/horttech.10.4.675.

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More than 50 agents participated in a series of workshops that were offered as in-service training and as a graduate level North Carolina State University (NCSU) course worth four credits. The Organic Unit at the Center for Environmental Farming Systems (CEFS), a 100-acre (40-ha) facility dedicated to research and education in organic farming systems, served as a home base for training activities. These training activities consisted of lectures, hands-on demonstrations, group discussions, field trips, and class exercises. Two unique features of the workshops were the interdisciplinary, team teaching approach and the emphasis on integration of information about interactions among production practices. This well-received, successful training program will serve as a model for future extension training. A training manual, slide sets, extension publications, and an organic farming web site are being created to provide agents with the resource materials they need to conduct county-based educational programming in organic production systems and enterprises. The model for extension training presented in this report is an effective means for engaging county agents in continuing education and professional development. Interdisciplinary teaching teams allow for a full, integrated treatment of subject matter and present a whole systems perspective to agents. Regularly scheduled, intensive sessions that accommodate busy calendars and utilize time efficiently provide a strong incentive for regular attendance. Awarding graduate level university credit hours for completion of required course work attracts and retains prospective student and agents. Encouragement of active participation by agents through hands-on field activities, open discussion of issues that impact agricultural and rural life, and field trips to view concepts presented in a real world context ensure that educational goals are fulfilled and that active learning takes place. This model should be used in future extension training programs.

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Ichimura, Keiichi, Yasushi Ohta, Yoh-Ichiro Maeda und Hiroyoshi Sugimura. „Mucoceles of the Paranasal Sinuses with Intracranial Extension-Postoperative Course“. American Journal of Rhinology 15, Nr. 4 (Juli 2001): 243–47. http://dx.doi.org/10.1177/194589240101500405.

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Mucoceles of the paranasal sinuses cause progressive distension of the bony walls and induce compressive symptoms. Although rare, cases of massive intracranial extension have occurred. We believe that an endoscopic transnasal approach is the best choice for such huge mucoceles because it is the least invasive and can provide an adequate surgical field of view for wide marsupialization. However, the results of long-term follow-up after endoscopic transnasal surgery have not been reported. This study was designed to evaluate prospectively the postoperative course of patients with intracranially extended mucocele. In the last 5 years, we have operated on four patients with intracranially extended mucocele. Although postoperative scanning is not recommended routinely after surgery for inflammatory disease, we followed up two patients who consented by using magnetic resonance imaging (MRI) along with endoscopy. Dural descent to the original skull base plane necessitated long periods of follow-up, lasting 18 and 5 months, respectively. On the mucocele wall mucosa, which had been smooth during surgery, polyps and granulations developed after surgical drainage and lasted for a considerable time. Although endoscopic transnasal opening of mucocele is a method of choice, we recommend follow-up of such patients for long periods, at least until the frontal skull base dura returns to its original position.

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Gao, Jing. „Analysis of Military Application of Software Radio Communication Technology“. MATEC Web of Conferences 267 (2019): 02017. http://dx.doi.org/10.1051/matecconf/201926702017.

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The emergence of software radio technology is the third technological revolution in the field of communication. In view of the immature status of the application of software radio communication technology in our country's military affairs, on the premise of interpreting the connotation and extension of software radio communication technology, this paper systematically analyses the principle and architecture of software radio, and puts forward that military software radio communication technology can be used in electronic warfare simulation evaluation and software enhancement. The conception of the application of wire electronic warfare system expands the theoretical breadth of military application of software radio communication technology.

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BADRAN, SHOKRY M., AHMED H. YOUSEF und WAHED M. ABDUL SADIQ. „THE INTEGRATED TASKS OF EXTENSION AND WATER ADVISORY IN THE FIELD OF IRRIGATION DEVELOPMENT PROJECTS FROM POINT OF VIEW OF AGRICULTURAL EXTENSION AND WATER ADVISORY ENGINEERS IN QUENA AND KAFR EL- SHEIKH GOVERNORATS“. Egyptian Journal of Agricultural Research 92, Nr. 4 (20.12.2014): 1677–97. http://dx.doi.org/10.21608/ejar.2014.157715.

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McClelland, JJ, R. Gupta, ZJ Jabbour und RJ Celotta. „Laser Focusing of Atoms for Nanostructure Fabrication“. Australian Journal of Physics 49, Nr. 2 (1996): 555. http://dx.doi.org/10.1071/ph960555.

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Laser focusing of atoms has emerged as a viable form of nanofabrication. Structures are formed by focusing chromium atoms as they deposit onto a surface. The focusing occurs in a standing-wave laser field in one or two dimensions, resulting in arrays spaced at exactly half the laser wavelength (λ/2 = 212�78 nm). Atomic force, scanning electron, and transmission electron microscopies are used to view the fabricated structures. Improvements in the technique, including narrowing of the linewidth and extension to two dimensions are discussed. Theoretical predictions for the shape of the deposited structures are also discussed.

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Haresign, W. „The use of field trials in reproduction research - experiences with melatonin in sheep and milk progesterone measurement in dairy cattle“. Proceedings of the British Society of Animal Production (1972) 1990 (März 1990): 39. http://dx.doi.org/10.1017/s0308229600018201.

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Because field trials often necessitate less detailed measurments than are possible in a true research environment, they are often believed to represent a poorer form of science. However, this is a very short-sighted view because there are particular benefits to be derived from carefully designed and conducted field trials which cannot be satisfied by smaller, more detailed studies.Within the context of reproduction research the objective is to understand the basic physiological mechanisms controlling reproduction, and to identify the nature and extent of reproductive wastage and its causes. The logical extension of this is to develop appropriate treatment strategies to overcome these limitations, some of which may be satisfied by changes in animal management while others will require recourse to pharmaceutical manipulation.

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Belich, H., M. A. Santos und M. T. D. Orlando. „The gauge sector of the SME with Lorentz-symmetry violation by symplectic projector method“. Modern Physics Letters A 30, Nr. 35 (28.10.2015): 1550191. http://dx.doi.org/10.1142/s0217732315501916.

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We propose to analyze a modified electromagnetism inspired from the gauge sector of the Standard Model extension (SME). From the point of view of a canonical formulation, we carried out the usual analysis on the constraints structure of the odd sector (Carroll–Field–Jackiw term) and a Maxwell term with an effective metric. This effective metric is obtained by a vectorial decomposition of the CPT-even term, that is absorbed in the ordinary Maxwell term. Using symplectic projector method (SPM), we obtain the dispersions relations and we have verified conditions of stability to determine the valid spectrum.

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Hackner, Ralf, Martin Raithel, Edgar Lehmann und Thomas Wittenberg. „Deep-learning based reconstruction of the stomach from monoscopic video data“. Current Directions in Biomedical Engineering 6, Nr. 3 (01.09.2020): 44–47. http://dx.doi.org/10.1515/cdbme-2020-3012.

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AbstractFor the gastroscopic examination of the stomach, the restricted field of view related to the „keyhole“-perspective of the endoscope is known to be a visual limitation. Thus, a panoramic extension can enlarge the field of vision, supports the endoscopist during the examination, and ensures that all of the inner stomach walls are visually inspected. To compute such a panorama of the stomach, knowledge about the geometry of the underlying structure is required. Structure from motion an approach to reconstruct the necessary information about the 3D-structure from monocular image sequences as provided by a gastroscope. We examine and evaluate an existing deep neuronal network for stereo reconstruction, in order to approximate the geometry of stomach parts from a set of consecutive acquired image pairs from gastroscopic videos.

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Mikhaiel, Mary, und G. Esawy. „AGRICULTURAL EXTENSION AND TRAINING EXPERTS, VIEW POINTS FOR IMPORTANCE DEGREE OF USING AND ACTIVITY TRAINING METHODS FOR DEVELOPING KNOWLEDGE LOCAL AGRICULTURAL EXTENSION AGENTS IN FIELD OF PRODUCING CO'I'I'ON CROP IN SOME MIDDLE DELTA GOVERNORATES“. Journal of Agricultural Economics and Social Sciences 31, Nr. 2 (01.02.2006): 795–806. http://dx.doi.org/10.21608/jaess.2006.156695.

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Elshikhy, Refat Ahmed. „Fundamental Analysis of the New Version of the New Proposed Fracture Theory“. Materials Science Forum 502 (Dezember 2005): 87–94. http://dx.doi.org/10.4028/www.scientific.net/msf.502.87.

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New version of new proposed fracture theory called N-N was introduced as concepts and hypotheses. In this research analytical discussions and applications in addition to detailed explanation of physical meaning and conceptual formation of is introduced. The current theory depends mainly on energy approach in LEFM for isotropic brittle materials and can be applied for ductile materials and composites regarding their different properties. This theory represents an extension of the continued efforts to obtain a unified view for all ideas and proposals of the majority of the researchers in the field of development of the fracture theories to predict the mechanism and mechanical aspects of cracking process. Fundamental new concepts and analytical hypotheses are introduced.

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Mohd Zinal, Nur Atikah, Amnorzahira Amir und Norpadzlihatun Manap. „Microclimate Model for Urban Heat Island Simulation: A Prediction Tool Extension to Calculate the Ambient Temperature of Building“. MATEC Web of Conferences 266 (2019): 06017. http://dx.doi.org/10.1051/matecconf/201926606017.

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Universiti Tun Hussein Onn Malaysia (UTHM) is a public university located at Parit Raja, Batu Pahat, which is categorized as a suburban area of Johor, Malaysia and is still in development progress. However, the quick pace of development leads to changing of land use from green surface to hard surface building blocks which tends to increase the temperature level and reduce outdoor comfort level of occupants in UTHM. In addition, the available software simulations that used currently for temperature monitoring is mostly too complicated for educated non-scientist such as urban planners and architects. This research objectives are to predict the ambient building temperature of reference area by using Screening Tool for Estate Environment Evaluation software (STEVE) and to provide comparison for both of field measurements with STEVE results. In order to achieve these objectives, a total of six stations considering different urban morphologies are evaluated to give a better understanding on implication of urban heat island. The daily minimum (Tmin), average (Tavg) and maximum (Tmax) air temperature for six stations in UTHM have been developed and validated based on a long-term field measurement. The pavement (PAVE), building (BDG), green plot area ratio (GnPR), average height area (AvgHT), sky view factor (SVF), total wall area (WALL) and result of the temperature (Tmax, Tmin and Tavg) are automatically calculated by STEVE from the developed 3D models. The results show that the percentage different of temperature between STEVE and field measurement is in a range of 0.9-1.0% and this has strongly indicated that STEVE is suitable to be used as temperature prediction tool.

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Guo, Ting Liang, Guo Jin Feng, Yu Wang und Ying Wei He. „A New Kind of Integrating Sphere Radiation Calibration System for Satellite Remote Sensors“. Key Engineering Materials 500 (Januar 2012): 569–73. http://dx.doi.org/10.4028/www.scientific.net/kem.500.569.

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A new kind of half integrating sphere radiation system that has the adjustable area of radiating surface in the 380nm-2500nm wave band is introduced in this paper. The opening diameter of the integrating sphere reaches to Φ600mm. Half Integrating sphere radiation system is mainly composed of a half sphere, extension part, cyclic annular baffles and other components. The diameter of half-integrating sphere is Φ1800mm. The radiance uniformity through opening reaches up to 98%. Systems can now be used for all types of large field of view of satellite remote sensor for the calibration of spectral radiance; in addition, it can also be applied for various types of light exposure calibration such as flash lamp and so on.

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Hamarová, Ivana, Petr Šmíd, Pavel Horváth und Miroslav Hrabovský. „A Simulation Analysis of an Extension of One-Dimensional Speckle Correlation Method for Detection of General In-Plane Translation“. Scientific World Journal 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/704368.

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The purpose of the study is to show a proposal of an extension of a one-dimensional speckle correlation method, which is primarily intended for determination of one-dimensional object's translation, for detection of general in-plane object's translation. In that view, a numerical simulation of a displacement of the speckle field as a consequence of general in-plane object's translation is presented. The translation componentsaxandayrepresenting the projections of a vectoraof the object's displacement onto bothx- andy-axes in the object plane(x,y)are evaluated separately by means of the extended one-dimensional speckle correlation method. Moreover, one can perform a distinct optimization of the method by reduction of intensity values representing detected speckle patterns. The theoretical relations between the translation componentsaxandayof the object and the displacement of the speckle pattern for selected geometrical arrangement are mentioned and used for the testifying of the proposed method's rightness.

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Fontaine, D., und C. Peymirat. „Large-scale distributions of ionospheric horizontal and field-aligned currents inferred from EISCAT“. Annales Geophysicae 14, Nr. 12 (31.12.1996): 1284–96. http://dx.doi.org/10.1007/s00585-996-1284-z.

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Abstract. Statistical models for large-scale convection and for ionospheric conductances were previously derived from observations of the incoherent-scatter radar EISCAT. We complete this large-scale description with statistical models of the horizontal and field-aligned currents achieved from the same data base and for the same ranges of the magnetic activity index Kp. Except for the high-latitude dayside currents generally located poleward of the radar field of view, a large part of the whole current system can be probed with EISCAT. Globally consistent with previously published models, our results also exhibit some differences, such as the asymmetry in the local-time extension of the current sheets, concentrated to a few hours around 18 MLT in the evening sector, while widely spread from premidnight to prenoon magnetic local times on the morningside. This statistical description of the current system above EISCAT allowed us to examine several aspects of the large-scale auroral electrodynamics, namely the relationships between convection, conductances, and currents, in particular in the vicinity of the Harang discontinuity, and the features of the global current circuit.

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Landau, Ioan D. „Evolution of Adaptive Control“. Journal of Dynamic Systems, Measurement, and Control 115, Nr. 2B (01.06.1993): 381–91. http://dx.doi.org/10.1115/1.2899078.

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The evolution of the adaptive control algorithms driven by the results obtained in the application of the 1st generation of adaptive controllers (model reference adaptive control, self-tuning minimum variance) is examined. Research in the field of adaptive control has been directed, on the one hand, toward the development of a robust general purpose adaptive controller and, on the other, towards the extension of the model reference adaptive control approach to nonlinear systems. Research has also investigated the stability/passivity approach for developing dedicated adaptive control algorithms for particular classes of nonlinear plants (e.g., rigid robots). The paper will review the results obtained in these directions both from the theoretical and the practical points of view. In the final part, current research directions will be included.

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Liu, W. Timothy, Xiaosu Xie und Pearn P. Niiler. „Ocean–Atmosphere Interaction over Agulhas Extension Meanders“. Journal of Climate 20, Nr. 23 (01.12.2007): 5784–97. http://dx.doi.org/10.1175/2007jcli1732.1.

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Abstract Many years of high-resolution measurements by a number of space-based sensors and from Lagrangian drifters became available recently and are used to examine the persistent atmospheric imprints of the semipermanent meanders of the Agulhas Extension Current (AEC), where strong surface current and temperature gradients are found. The sea surface temperature (SST) measured by the Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E) and the chlorophyll concentration measured by the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) support the identification of the meanders and related ocean circulation by the drifters. The collocation of high and low magnitudes of equivalent neutral wind (ENW) measured by Quick Scatterometer (QuikSCAT), which is uniquely related to surface stress by definition, illustrates not only the stability dependence of turbulent mixing but also the unique stress measuring capability of the scatterometer. The observed rotation of ENW in opposition to the rotation of the surface current clearly demonstrates that the scatterometer measures stress rather than winds. The clear differences between the distributions of wind and stress and the possible inadequacy of turbulent parameterization affirm the need of surface stress vector measurements, which were not available before the scatterometers. The opposite sign of the stress vorticity to current vorticity implies that the atmosphere spins down the current rotation through momentum transport. Coincident high SST and ENW over the southern extension of the meander enhance evaporation and latent heat flux, which cools the ocean. The atmosphere is found to provide negative feedback to ocean current and temperature gradients. Distribution of ENW convergence implies ascending motion on the downwind side of local SST maxima and descending air on the upwind side and acceleration of surface wind stress over warm water (deceleration over cool water); the convection may escalate the contrast of ENW over warm and cool water set up by the dependence of turbulent mixing on stability; this relation exerts a positive feedback to the ENW–SST relation. The temperature sounding measured by the Atmospheric Infrared Sounder (AIRS) is consistent with the spatial coherence between the cloud-top temperature provided by the International Satellite Cloud Climatology Project (ISCCP) and SST. Thus ocean mesoscale SST anomalies associated with the persistent meanders may have a long-term effect well above the midlatitude atmospheric boundary layer, an observation not addressed in the past.

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Um, Ki‐Hyun, Yingying Fang und Young‐Jin Seo. „The Ramifications of COVID‐19 in Education: Beyond the Extension of the Kano Model and Unipolar View of Satisfaction and Dissatisfaction in the Field of Blended Learning“. Educational Measurement: Issues and Practice 40, Nr. 3 (12.05.2021): 96–109. http://dx.doi.org/10.1111/emip.12432.

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Favoreto, Ricardo Lebbos, und Saulo Fabiano Amâncio-Vieira. „International Papers Published on Resource-Based View: General Characteristics and the Way Resources are Treated on the Research with Smaller Organizations“. Revista Ibero-Americana de Estratégia 13, Nr. 2 (01.06.2014): 25–37. http://dx.doi.org/10.5585/ijsm.v13i2.2115.

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Since the 80s, the Resource-based View (RBV) has been one of the main theories of strategic management. The volume and the complexity of RBV publications challenge the researcher to understand its general characteristics. As the theory is mainly based on the analysis of large organizations, the researcher is also challenged to understand how resources are treated on researches that deal with smaller organizations. Analysing texts published in some of the most important international academic journals, this paper aims to present indicators that show how the field has been developed. The analyses rely on statistical and textual data. The results suggest the wide prevalence of quantitative methods and the choice by large organizations as object of study. The research with smaller organizations is then analysed. The research guidelines are presented, as well as the way the resources are treated. The paper contributes thus to the comprehension of the field configuration and displays concomitantly suggestions for its extension.

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Oxford, J. S. „Biochemical techniques for the genetic and phenotypic analysis of viruses: ‘Molecular Epidemiology’“. Journal of Hygiene 94, Nr. 1 (Februar 1985): 1–7. http://dx.doi.org/10.1017/s0022172400061076.

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New technologies now enable virologists to study small genetic and antigenic differences between field isolates of animal viruses at a higher level of discrimination than has been possible using conventional serological techniques. The most important of the laboratory techniques revolve around the use of monoclonal antibodies, peptide mapping, fingerprinting of whole RNA virus genomes, RNA:RNA hybridization, ‘electropherotyping’ of virus RNA or polypeptides, restriction enzyme analysis of virus DNA genomes, cloning of genes and rapid sequencing of viral DNAs and RNAs, in the latter case using primer extension techniques (reviewed by Palese & Roizman, 1980). From a practical point of view, genetic and phenotypic heterogeneity among viruses may be of considerable importance in attempts to control certain virus diseases by chemo- or immunoprophylaxis.

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Kaufman, Jason. „“Americans and Their Guns”: Civilian Military Organizations and the Destabilization of American National Security“. Studies in American Political Development 15, Nr. 01 (2001): 88–102. http://dx.doi.org/10.1017/s0898588x01010033.

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“The Second Amendment is there as a balance of power. It is literally a loaded gun in the hands of the people held to the heads of government.” —NRA field representative Fred Romero, 1990 The right to bear arms is one of the most controversial issues in United States history; it has always been so, though not for the reasons usually cited by contemporaries. It has been customary since at least the late nineteenth century to view military organizations as an extension of the legitimate authority of the state (except in case of unsanctioned resistance). The American experience, however, gives lie to the assumption that there is a clean analytical divide between state and civil society when it comes to military matters.

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Zhong, Libo, Lanqiang Zhang, Zhendong Shi, Yu Tian, Youming Guo, Lin Kong, Xuejun Rao, Hua Bao, Lei Zhu und Changhui Rao. „Wide field-of-view, high-resolution Solar observation in combination with ground layer adaptive optics and speckle imaging“. Astronomy & Astrophysics 637 (Mai 2020): A99. http://dx.doi.org/10.1051/0004-6361/201935109.

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Context. High angular resolution images at a wide field of view are required for investigating Solar physics and predicting space weather. Ground-based observations are often subject to adaptive optics (AO) correction and post-facto reconstruction techniques to improve the spatial resolution. The combination of ground layer adaptive optics (GLAO) and speckle imaging is appealing with regard to a simplification of the correction and the high resolution of the reconstruction. The speckle transfer functions (STFs) used in the speckle image reconstruction mainly determine the photometric accuracy of the recovered result. The STF model proposed by Friedrich Wöger and Oskar von der Lühe in the classical AO condition is generic enough to accommodate the GLAO condition if correct inputs are given. Thus, the precisely calculated inputs to the model STF are essential for the final results. The necessary input for the model STF is the correction efficiency which can be calculated simply with the assumption of one layer turbulence. The method for calculating the correction efficiency for the classical AO condition should also be improved to suit the GLAO condition. The generic average height of the turbulence layer used by Friedrich Wöger and Oskar von der Lühe in the classic AO correction may lead to reduced accuracy and should be revised to improve photometric accuracy. Aims. This study is aimed at obtaining quantitative photometric reconstructed images in the GLAO condition. We propose methods for extracting the appropriate inputs for the STF model. Methods. In this paper, the telemetry data of the GLAO system was used to extract the correction efficiency and the equivalent height of the turbulence. To analyze the photometric accuracy of the method, the influence resulting from the distribution of the atmospheric turbulence profile and the extension of the guide stars are investigated by simulations. At those simulations, we computed the STF from the wavefront phases and convolved it with the high-resolution numerical simulations of the solar photosphere. We then deconvolved them with the model STF calculated from the correction efficiency and the equivalent height to obtain a reconstructed image. To compute the resulting photometric precision, we compared the intensity of the original image with the reconstructed image. We reconstructed the solar images taken by the GLAO prototype system at the New Vacuum Solar Telescope of the Yunnan Astronomical Observatory using this method and analyzed the results. Results. These simulations and ensuing analysis demonstrate that high photometric precision can be obtained for speckle amplitude reconstruction using the inputs for the model STF derived from the telemetry data of the GLAO system.

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Gautier, Athénaïs, David Ginsbourger und Guillaume Pirot. „Goal-oriented adaptive sampling under random field modelling of response probability distributions“. ESAIM: Proceedings and Surveys 71 (August 2021): 89–100. http://dx.doi.org/10.1051/proc/202171108.

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In the study of natural and artificial complex systems, responses that are not completely determined by the considered decision variables are commonly modelled probabilistically, resulting in response distributions varying across decision space. We consider cases where the spatial variation of these response distributions does not only concern their mean and/or variance but also other features including for instance shape or uni-modality versus multi-modality. Our contributions build upon a non-parametric Bayesian approach to modelling the thereby induced fields of probability distributions, and in particular to a spatial extension of the logistic Gaussian model. The considered models deliver probabilistic predictions of response distributions at candidate points, allowing for instance to perform (approximate) posterior simulations of probability density functions, to jointly predict multiple moments and other functionals of target distributions, as well as to quantify the impact of collecting new samples on the state of knowledge of the distribution field of interest. In particular, we introduce adaptive sampling strategies leveraging the potential of the considered random distribution field models to guide system evaluations in a goal-oriented way, with a view towards parsimoniously addressing calibration and related problems from non-linear (stochastic) inversion and global optimisation.

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Wang, Zhe, Vittorio Bianco, Yutong Cui, Melania Paturzo und Pietro Ferraro. „2D resolution improvement via 1D scanning Space-Time Digital Holography (STDH) in Optofluidics“. EPJ Web of Conferences 215 (2019): 15001. http://dx.doi.org/10.1051/epjconf/201921515001.

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Space-Time Digital Holography (STDH) exploits the object motion to record the hologram in a hybrid space-time domain. This representation adds new capabilities to conventional DH, such as unlimited extension of the Field of View (FoV) and tunable phase shifting. Here we show that STDH is able to improve the spatial resolution as well. Differently from other super-resolution approaches, stitching between holograms or their spectra is no longer required. Moreover, we introduce a new STDH modality to record and process hybrid space-time representations. This allows improving resolution with one single object scan, paving the way to the use of STDH for super resolution imaging onboard Lab on a Chip devices.

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Zeng, Qing Peng, und Shui Xiu Wu. „Web Application Integration Framework Based on OSGi“. Applied Mechanics and Materials 303-306 (Februar 2013): 2377–81. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.2377.

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In the view of current application software appeared complex, huge demand and update frequently, the frame technology is introduced to the software development process in order to improve the software development speed and quality. OSGi (Open Service Gateway Initiative) as a field development framework provides a good environment, system development based on OSGi has many advantages, including the dynamic change system behavior, it has hot swap plug in system structure, and with high reusability and efficiency. The paper constructs a Web application integration framework based on OSGi, which can effectively solve those problems of the framework development in the territory is complex, the integration framework’s reusability is better , and with easy extension characteristics.

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North, Chris, Nathan Conklin, Kiran Indukuri und Varun Saini. „Visualization Schemas and a Web-Based Architecture for Custom Multiple-View Visualization of Multiple-Table Databases“. Information Visualization 1, Nr. 3-4 (Dezember 2002): 211–28. http://dx.doi.org/10.1057/palgrave.ivs.9500020.

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Relational databases provide significant flexibility to organize, store, and manipulate an infinite variety of complex data collections. This flexibility is enabled by the concept of relational data Schemas, which allow data owners to easily design custom databases according to their unique needs. However, user interfaces and information visualizations for accessing and utilizing databases have not kept pace with this level of flexibility. Visualizations need to integrate multiple tables and diverse visualization tools into custom solutions. This paper describes advances to Snap-Together Visualization, introduces Visualization Schemas, and presents an extensible system architecture. The Snap model for custom multiple-view visualization establishes an analogy to the relational data model, enabling coordinated data design and visualization design. Visualization Schemas are a natural extension to data Schemas, and provide a user interface that enables data owners to rapidly construct and disseminate custom visualizations without programming. The web-based software architecture supports run-time extensibility, enabling end-user integration and dissemination of diverse data and visualization tools from the field.

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Mioduchowska-Jaroszewicz, Edyta. „An Analysis of Entrepreneurship in Family-Owned Stock Companies“. Folia Oeconomica Stetinensia 20, Nr. 1 (01.06.2020): 266–85. http://dx.doi.org/10.2478/foli-2020-0016.

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AbstractResearch background: Family businesses are included in the functioning of each market transaction. testing their development and dissemination can be an interesting area of research from the point of view of hierarchy and from the point of view of the owners of these companies.Purpose: The purpose of the article was to present an analysis of entrepreneurship of family-owned companies listed on the Warsaw Stock Exchange (WSE).Researcher methodology: The quantitative analysis method, including also the descriptive statistics method, ratio analysis, and inference was incorporated. The study was based on the financial data of 38 family capital groups. The data analysis on entrepreneurship in the years 2009–2018 indicates that in the case of all of the studied companies most were in a stable situation. The analysis of entrepreneurship, which takes into account the rate of income growth and efficiency indicators, indicates that the examined group of family companies was characterized by a high level of entrepreneurship throughout the analysed period, thus showing a downward trend.The results: The results of the research may form the basis for further research in the field presented in the article with an emphasis on sector diversification, the size of companies and the extension of the analysed time periods.Novelty: Entrepreneurship research in family entities can be seen from the point of view of the rate of increase of revenues and efficiency of assets and cash efficiency.

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BANDYOPADHYAY, PRATUL, und KOHINUR HAJRA. „STOCHASTIC QUANTIZATION AND THE BERRY PHASE“. International Journal of Modern Physics A 06, Nr. 17 (20.07.1991): 3061–80. http://dx.doi.org/10.1142/s0217751x91001490.

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We study here the Berry phase from the point of view of stochastic quantization. The relativistic generalization of Nelson’s stochastic quantization procedure can be achieved when the Brownian motion process is taken into account in the internal space (apart from that in the external space). This effectively considers the particle as one that is stochastically extended, and nonrelativistic quantum mechanics is obtained in the sharp point limit. This can be formulated in terms of a gauge-field-theoretical extension of the particle. This inherent gauge field gives rise to the holonomy in a Hermitian line bundle, which appears as an extra phase factor in the adiabatic limit for a parameter-dependent Hamiltonian, and determines a unique connection. When the Hamiltonian is degenerate, the holonomy is defined in a complex vector bundle. In the case of a fermion, this Berry connection is found to be related to the Wess-Zumino term and can be considered to be of topological origin.

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Kruk, Aleksandra. „Międzynarodowe role Unii Europejskiej w wypowiedziach Javiera Solany, Catherine Ashton i Federiki Mogherini podczas Monachijskich Konferencji Bezpieczeństwa w latach 2009‑2019“. Politeja 17, Nr. 3(66) (25.06.2020): 133–44. http://dx.doi.org/10.12797/politeja.17.2020.66.09.

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European Union’s International Role in Statements of Javier Solana, Catherine Ashton and Frederica Mogherini during the Munich Security Conferences in the Years 2009 until 2019 The aim of the article is an analysis of statements of the European union’s foreign affairs and security policy high representatives during the Munich Security Conference in years 2009 until 2019. The diplomats’ activities resulted from their roles as high representatives, which are programming, initiating action and representing the European Union outside. The Munich Security Conferences were a platform to present activities and stand points concerning contemporary challenges in the field of international security. The conferences contributed to the extension of contacts of the EU from Javier Solana’s, Catherine Ashton’s and Federica Mogherini’s points of view.

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Boyle, Alexandria. „Replication, Uncertainty and Progress in Comparative Cognition“. Animal Behavior and Cognition 8, Nr. 2 (01.05.2021): 296–304. http://dx.doi.org/10.26451/abc.08.02.15.2021.

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Replications are often taken to play both epistemic and demarcating roles in science: they provide evidence about the reliability of fields’ methods and, by extension, about which fields “count” as scientific. I argue that, in a field characterized by a high degree of theoretical openness and uncertainty, like comparative cognition, replications do not sit well in these roles. Like other experiments conducted under conditions of uncertainty, replications are often equivocal and open to interpretation. As a result, they are poorly placed to deliver clear judgments about the reliability of comparative cognition’s methods or its scientific bona fides. I suggest that this should encourage us to take a broader view of both the nature of scientific progress and the role of replication in comparative cognition.

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